Milk-can



(No Model.)

v O. L. HALL.

MILK (JAN.

Patented Aug. 10, 1886.

IJV VEJV' TOR W MM Attorney 1|. PETERS. Photo-WW", Wuhinglom n. c.

UNITED STATES PATENT OEEIGE.

GASSIUS' L. HALL, OF YPSILANTI, MICHIGAN.

MILK-CAN.

SPECIFICATION forming part of Letters Patent No. 347,174, dated August10, 1886.

Application filed December 19, 1885. Serial No. 186,177. (No model.)

nying drawings, and to the letters of refer-' ence marked thereon, whichform part of this specification, in which Figure l is a side view of myimproved can. Fig. 2 is a plan view of the same .with the cover removed.Fig. 3 is avertical central;

section of the can. p

The invention relates to improvements in milk-cans, the object beingtocause a circulation of air through the can by means of the a'ni-' malheat of the new milk, and, by means of the current thus produced, to aidin cooling the milk.

The invention consists, essentially, in a can provided with a centralvertical air-tube running therethrough, and connected at its lower endwith a similar tube which risesoutside the can, so that the air in thefirst tube, being heated by the warm milk, will rise and cause anascending air-current till the milk is cool.

' Referring to the accompanying drawings, A designates a milk-cansupported on the feet a, for convenience in fitting the necessary tubmg.

'B is acentral vertical tube rising from the bottom of the can to apoint above its upper edge, as shown.

b bare lugs on the outside of the can, adjacent to its upper edge, andarranged to support the rim or flange c of the cover 0. The

said cover rises and converges toward its oen- E is a tube rising alongthe side of the can to a point above the upper edge of the same, andhaving preferably a piece of tubing, e, bent into two elbows, slippedinto its upper end. The object of this double elbow, which has its mouthdownward when in place, is to prevent dirt or, dust from entering thetube E. The lower part, e, of the tube E is bent horizontally and passesbeneath the can. Its end then is bent upward and communicates throughthe bottom of the can with the lower end of the tube 13. The tube E isheld to the body of the can by one or more stay-pieces, e", as shown.The tubeB is preferably of larger diameter than the tube E, to increasethe cooling-surface,and so that a larger amount of cool air will bedrawn in the can and upward therefrom; but, if desired, the tubing mayall have the same caliber, so that a tube may be run through the bottomof and fitted to a can of ordinary construction.

If desired, the can may have two bottoms, and the bend of the pipe E runthrough its side between the same, as shown in Fig. 3.

The milk while warm is poured into the can and surrounds the tube B. Thenatural heat of the milk warms the air in said tube and causes anascending current,which is kept up as long as the milk is warm by airflowing in through the tube E.

The perforations in the cap of the cover allow the air to pass out ofthe can, so that there is no interference with the circulation. Thecover, having a larger diameter than the can, and being supported abovethe edge of the same, also permits an outflow of air. The cover is madeof considerably larger diameter than the can, and is supported by thelugs, so that the outfiow of air can go on, while the cover protects themilk. By these means not only is the milk more rapidly cooled, but allodors are conveyed away with the outfiowing air,and the milk renderedmore sweet and palatable. The outflowing current also prevents the milkfrom absorbing gases from the surrounding air and being spoiled thereby.

In practice the can sets .in an ice-vessel of cold water, and all watercondensed on the cover will flow down the sides thereof and drop intothe ice-vessel or outside of the can, so that the milk is not diluted bythe same.

Having" described my invention, I clui1nl. The combination, with themilk-can A, provided with a cover, 0, having a cap, 0, the sides ofwhich are of perforated metal or \viregauze, of the central verticaltube,l3, and the tube E, opening into the lower end thereof,substantially as described.

2. In a milk-can, the combination of the cover 0, provided with aperiorated cap, 0, having a larger diameter than the body of the can andresting upon the lugs b I), secured to said body in such manner that aircan pass between the cover and body, the tube B, rising vertically inthe can to a point above the upper edge of the same, and the tubing E,rising on the outside of the can and communicating with the lower endefthe tube B, substau-- tially as specified.

3. As an article of manufacture, the milkean composed of the body A, thecap 0, of

(JASSIUS L. HALL.

\Vi tn esScS:

1G. 1. ALLEN, JOHN H. Fox.

